dc.contributor.author |
Zhang, Yongguang
|
|
dc.contributor.author |
Zhao, Yan
|
|
dc.contributor.author |
Bakenov, Zhumabay
|
|
dc.date.accessioned |
2015-12-02T08:47:32Z |
|
dc.date.available |
2015-12-02T08:47:32Z |
|
dc.date.issued |
2014 |
|
dc.identifier.citation |
Zhang Yongguang., Zhao Yan., Bakenov Zhumabay., 2014, A novel lithium/sulfur battery based on sulfur/graphene nanosheet composite cathode and gel polymer electrolyte, Nanoscale Research Letters, doi:10.1186/1556-276X-9-137 |
ru_RU |
dc.identifier.uri |
http://nur.nu.edu.kz/handle/123456789/837 |
|
dc.description.abstract |
A novel sulfur/graphene nanosheet (S/GNS) composite was prepared via a simple ball milling of sulfur with
commercial multi-layer graphene nanosheet, followed by a heat treatment. High-resolution transmission and
scanning electronic microscopy observations showed the formation of irregularly interlaced nanosheet-like structure
consisting of graphene with uniform sulfur coating on its surface. The electrochemical properties of the resulting
composite cathode were investigated in a lithium cell with a gel polymer electrolyte (GPE) prepared by trapping
1 mol dm−3 solution of lithium bistrifluoromethanesulfonamide in tetraethylene glycol dimethyl ether in a polymer
matrix composed of poly(vinylidene fluoride-co-hexafluoropropylene)/poly(methylmethacrylate)/silicon dioxide
(PVDF-HFP/PMMA/SiO2). The GPE battery delivered reversible discharge capacities of 809 and 413 mAh g−1 at the
1st and 50th cycles at 0.2C, respectively, along with a high coulombic efficiency over 50 cycles. This performance
enhancement of the cell was attributed to the suppression of the polysulfide shuttle effect by a collective effect of
S/GNS composite cathode and GPE, providing a higher sulfur utilization. |
ru_RU |
dc.language.iso |
en |
ru_RU |
dc.publisher |
Nanoscale Research Letters., http://www.nanoscalereslett.com/content/9/1/137 |
ru_RU |
dc.subject |
graphene nanosheet |
ru_RU |
dc.subject |
lithium/sulfur battery |
ru_RU |
dc.subject |
nanostructured sulfur cathode |
ru_RU |
dc.subject |
gel polymer electrolyte |
ru_RU |
dc.subject |
silicon dioxide |
ru_RU |
dc.subject |
polymer matrix |
ru_RU |
dc.title |
A novel lithium/sulfur battery based on sulfur/graphene nanosheet composite cathode and gel polymer electrolyte |
ru_RU |
dc.type |
Article |
ru_RU |